diff --git a/src/common/meta/src/ddl/tests/alter_table.rs b/src/common/meta/src/ddl/tests/alter_table.rs
index 09f78c61b30..c67034b1da4 100644
--- a/src/common/meta/src/ddl/tests/alter_table.rs
+++ b/src/common/meta/src/ddl/tests/alter_table.rs
@@ -1569,7 +1569,7 @@ async fn test_widen_ts_unit_rejects_incompatible_partition_bounds_before_alterin
             .column_schema_by_name("ts")
             .unwrap()
             .data_type,
-        &ConcreteDataType::timestamp_millisecond_datatype()
+        ConcreteDataType::timestamp_millisecond_datatype()
     );
     let (physical_table_id, physical_table_route) = ddl_context
         .table_metadata_manager
@@ -1648,6 +1648,6 @@ async fn test_widen_ts_unit_with_compatible_partition_bounds_completes() {
             .column_schema_by_name("ts")
             .unwrap()
             .data_type,
-        &ConcreteDataType::timestamp_nanosecond_datatype()
+        ConcreteDataType::timestamp_nanosecond_datatype()
     );
 }